Don't think it's anything (more) to sweat, just pointing out that that the Feds have approved an alternate method of complying ('AMOC') with the 5000 hour spar inspection AD. I haven't re-read all the referenced documents but infer that the AMOC (revised 57-30-02) inspection procedures are more detailed...and therefore a little more costly.
Agree it doesn't seem well written, but then good technical writing is becoming a lost art...as is good writing in general.
Joe
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